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國營事業◆英文題庫下載題庫

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        The tropical blue moon butterfly has developed a way of fighting back   26    parasitic bacteria. Six years ago, males accounted for   27   1% of the blue moon population on two islands in the South Pacific. But   28   last year, the butterflies had evolved a gene to keep the bacteria   29   and male numbers were up to about 40% of the population. Scientists believe the comeback is   30   “suppressor＂ genes that control the Wolbachia bacteria that is   31   down from the mother and kills the male embryos   32   they hatch. “To my   33   , this is the fastest evolutionary change that has ever been observed, “said Sylvain Charlat,   34   University College London,UK, whose study   35   in the. 

 
(A) know
(B) appearing
(C) before
(D) pass (AB) of (AC) passed (AD) just
 (BC) due (BD) by (CD) passing (ABC) knowledge (ABD) appears (ACD) in check
 (BCD) against (ABCD) due to

【題組】29

答案：A,C,D
難度： 困難
1F
Schein_地特三等上榜 大一下 (2018/04/25)

But by last year, the butterflies had evolved a gene to keep the bacteria in check and male numbers were up to about 40% of the population.

in check:

被阻止,被控制住,受到抑制

adv.unable to act freely

2F
•ิ_•ิ 高一上 (2018/11/15)

keep in check 抑制

Please keep your voice in check. 請壓低嗓門。


        The tropical..-阿摩線上測驗